Abstract
Lime-induced iron chlorosis is a major nutritional disorder causing severe plant growth and yield reduction in the calcareous soils of Tunisia. The understanding the behavior of key metabolic functions of peas on calcareous soils, the identification of useful traits of tolerance, and the exploration of the genotypic differences in response to this constraint remain the most efficient approaches due to their coast, environmental benefits, and sustainability. For this purpose, a greenhouse experiment was conducted on three pea genotypes (Alexandra: Alex, Douce de provence: DP, and Merveille de Kelvedon: MK) cultivated on calcareous soil (Fe-deficient) and fertile soil (control). Plant growth, SPAD index, iron nutrition and distribution, photosynthesis, and antioxidant enzymes were deeply analyzed to discriminate genotypic differences. Calcareous-induced iron deficiency reduced SPAD index, plant growth, net photosynthesis, and tissue Fe content against a significant stimulation of the oxidative stress indicators, H2O2 and Malondialdehyde (MDA). Moreover, we reported a significant induction of SOD and CAT activity in shoots and roots of the Alexandra genotype. Fe use efficiency increased on calcareous soil and clearly discriminated the studied genotypes. Alexandra genotype was found to be the most tolerant to lime-induced iron chlorosis. This genotype protects its tissues against oxidative stress by stimulating enzyme activities (SOD and CAT) and develops significant efficiency of Fe uptake, translocation to shoots and use when cultivated on calcareous soil.
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Claims 8
Claim · model-written summary
Calcareous-induced iron deficiency reduces SPAD index, plant growth and net photosynthesis in pea
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- Calcareous-induced iron deficiencye2
- Outcome
- SPAD index, plant growth, net photosynthesise2
- Direction
- reducede2
- Comparator
- fertile soil (control)e1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“cultivated on calcareous soil (Fe-deficient) and fertile soil (control)”
e2“Calcareous-induced iron deficiency reduced SPAD index, plant growth, net photosynthesis, and tissue Fe content against a significant stimulation of the oxidative stress indicators, H2O2 and Malondialdehyde (MDA)”
Claim · model-written summary
Calcareous-induced iron deficiency reduces tissue Fe content in pea
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- Calcareous-induced iron deficiencye2
- Outcome
- tissue Fe contente2
- Direction
- reducede2
- Comparator
- fertile soil (control)e1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“cultivated on calcareous soil (Fe-deficient) and fertile soil (control)”
e2“Calcareous-induced iron deficiency reduced SPAD index, plant growth, net photosynthesis, and tissue Fe content against a significant stimulation of the oxidative stress indicators, H2O2 and Malondialdehyde (MDA)”
Claim · model-written summary
Calcareous-induced iron deficiency significantly stimulates oxidative stress indicators H2O2 and MDA in pea
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- Calcareous-induced iron deficiencye2
- Outcome
- oxidative stress indicators, H2O2 and Malondialdehyde (MDA)e2
- Direction
- significant stimulatione2
- Comparator
- fertile soil (control)e1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“cultivated on calcareous soil (Fe-deficient) and fertile soil (control)”
e2“Calcareous-induced iron deficiency reduced SPAD index, plant growth, net photosynthesis, and tissue Fe content against a significant stimulation of the oxidative stress indicators, H2O2 and Malondialdehyde (MDA)”
Claim · model-written summary
Alexandra pea shoots and roots show significant induction of SOD and CAT activity
- Taxon
- peaLathyrus oleraceuse0
- Material
- Alexandra genotypee1
- Organ / stage
- shoots and rootse1
- Outcome
- SOD and CAT activitye1
- Direction
- inductione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“we reported a significant induction of SOD and CAT activity in shoots and roots of the Alexandra genotype”
Claim · model-written summary
Fe use efficiency increases on calcareous soil and discriminates pea genotypes
- Taxon
- peaLathyrus oleraceuse0
- Outcome
- Fe use efficiencye1
- Direction
- increasede1
- Setting
- calcareous soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“Fe use efficiency increased on calcareous soil and clearly discriminated the studied genotypes”
Claim · model-written summary
The Alexandra pea genotype is the most tolerant to lime-induced iron chlorosis
- Taxon
- peaLathyrus oleraceuse0
- Material
- Alexandra genotypee1
- Outcome
- lime-induced iron chlorosise1
- Qualifier
- the most tolerante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“Alexandra genotype was found to be the most tolerant to lime-induced iron chlorosis”
Claim · model-written summary
Alexandra protects its tissues against oxidative stress by stimulating SOD and CAT enzyme activities
- Taxon
- peaLathyrus oleraceuse0
- Gene
- SOD and CATe1
- Outcome
- protects its tissues against oxidative stresse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“This genotype protects its tissues against oxidative stress by stimulating enzyme activities (SOD and CAT) and develops significant efficiency of Fe uptake, translocation to shoots and use when cultivated on calcareous soil”
Claim · model-written summary
Alexandra pea develops significant efficiency of Fe uptake, translocation to shoots and use on calcareous soil
- Taxon
- peaLathyrus oleraceuse0
- Material
- Alexandra genotypee1
- Outcome
- efficiency of Fe uptake, translocation to shoots and usee2
- Setting
- calcareous soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For this purpose, a greenhouse experiment was conducted on three pea genotypes”
e1“Alexandra genotype was found to be the most tolerant to lime-induced iron chlorosis”
e2“This genotype protects its tissues against oxidative stress by stimulating enzyme activities (SOD and CAT) and develops significant efficiency of Fe uptake, translocation to shoots and use when cultivated on calcareous soil”
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- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.